V2X Carrier Aggregation Resource Allocation Under UE Capability Limits
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently selecting and allocating resources for vehicle-to-everything (V2X) communication, particularly when carrier aggregation is limited by the terminal's capabilities, leading to issues such as power spectral density imbalance and TX chain switching times.
Innovation Solution
A method and device for resource allocation through carrier aggregation in V2X systems, which involves identifying suitable carriers and symbols for sidelink communication, and selecting resources based on terminal capabilities to maximize transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If carrier aggregation is performed without considering terminal capabilities, then resource allocation flexibility is improved, but power spectral density imbalance and TX chain switching times occur
Solution Approach 1:
The patent applies local quality by making the resource allocation decision specific to each terminal's capabilities. The network device determines whether to perform carrier aggregation on a per-terminal basis, considering individual UE capabilities rather than applying a uniform approach. This localized decision-making prevents power spectral density imbalance by matching carrier aggregation configuration to terminal-specific characteristics.
Solution Approach 2:
The patent implements dynamics by making the carrier aggregation configuration adaptable and changeable based on terminal capabilities and network conditions. The network device can dynamically adjust whether to enable carrier aggregation for each terminal, allowing the system to transition between different resource allocation modes (with or without carrier aggregation) based on real-time requirements, thus maintaining flexibility while avoiding harmful effects.
2Adaptability or versatility
If carrier aggregation is performed without considering terminal capabilities, then resource allocation flexibility is improved, but TX chain switching times increase
Solution Approach 1:
The patent applies preliminary action by having the network device determine terminal capabilities and make carrier aggregation decisions in advance, before actual data transmission begins. By pre-assessing whether a terminal supports carrier aggregation and configuring resources accordingly beforehand, the system avoids last-minute TX chain switching, thereby reducing switching time losses and improving overall transmission efficiency.
3Productivity
If resources are allocated without considering UE capabilities, then resource allocation speed is improved, but transmission efficiency decreases
Solution Approach 1:
The patent implements self-service by enabling terminals to autonomously select resources based on pre-configured capability information and network indications. Once the network provides capability indicators and resource configuration rules, UEs can independently make resource selection decisions without requiring detailed network intervention for each allocation, thus maintaining fast allocation speed while ensuring capability-appropriate resource usage that preserves transmission efficiency.
Data Source
AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The present disclosure provides a resource selection operation through carrier aggregation in V2X communication.